I also have an issue with eating out of boredom. I've found that I mainly want to chew or munch on something at those times I want to eat when not hungry. A couple years ago I was told by a relative that had lost a lot of weight (over 200lbs.) that she avoids doing the same thing by chewing gum. I've started doing that and it works for me. I think the term is "oral fixation" for the issue that causes some people to overeat, chew their nails, and some people to smoke or chew tobacco. Chewing gum doesn't really fix the problem, but at least all you are doing is chewing gum and not using tobacco products, biting nails, or overeating.